Browse Prior Art Database

Acoustic Hood for a Typewriter

IP.com Disclosure Number: IPCOM000053124D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Alexander, JS: AUTHOR [+2]

Abstract

An acoustic hood for a typewriter covers the opening on the upper surface of the typewriter, and it is designed with a transparent surface having a 15-degree angle from front to rear which forces machine noise away from the operator into an acoustic filter and directs glare away from the operator's view.

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Acoustic Hood for a Typewriter

An acoustic hood for a typewriter covers the opening on the upper surface of the typewriter, and it is designed with a transparent surface having a 15-degree angle from front to rear which forces machine noise away from the operator into an acoustic filter and directs glare away from the operator's view.

The acoustic hood and filter system 11 rests on the typewriter machine frame 13 and includes a transparent top surface 15 and an opaque pivotable visor 17 which further acts to prevent glare. A sheet of paper 19 is fed through a rearwardly directed slot in the hood 11 and thence around the platen 21 whereat it is directed in an upward fashion so as to contact the underside of the surface
15. The surface 15 serves to direct the sheet 19 rearwardly and out an egress slot. A large acoustic filter 23 is located adjacent paper ingress and egress in the platen area and contains sound-deadening material. The hood 11 thus serves to direct noise toward the filter 23 and away from the operator.

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